Wholly optically controlled phased array radar transmitter

US9689968B2 · kind B2 · utility

Assignee

• Shanghai Jiao Tong University · CN

Inventors

• Weiwen Zou · Shanghai, CN
• Chenjun Liu · Shanghai, CN
• Anliang Yu · Shanghai, CN
• Jianping Chen · Shanghai, CN

Key dates

• Filing date: Jan 12, 2015
• Grant date: Jun 27, 2017
• Expiry date: Oct 14, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S2013/0245
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A wholly optically controlled phased array transmitter with integrated tunable optoelectronic oscillators, which are based on multi-wavelength optical sources and optical true time delay units, and optical time delay networks, having a multi-wavelength optical source, a first wavelength division multiplexer, a first optical splitter, a first electro-optic modulator, a second optical splitter, a first optical amplifier, a first optical time delay network, a photodetector, an electric amplifier, a DC-block, a second electro-optic modulator, a second optical amplifier, a second optical time delay network, an optical combiner, a second wavelength division multiplexer, an optical fibers, a photodetector array, a T/R component array, a microwave antenna array, a 1×2 optical switch, a 2×2 optical switch, a circulator, a third wavelength division multiplexer, a bundle of optical fibers with precise lengths, and a Faraday rotation mirror.